<template>
  <el-dialog :title="showTitle" :visible="showDialog" @close="btnCancel">
    <el-form :model="formData" :rules="rules" ref="deptForm" label-width="120px">
      <el-form-item prop="name" label="部门名称">
        <el-input v-model="formData.name" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item prop="code" label="部门编码">
        <el-input v-model="formData.code" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item prop="manager" label="部门负责人">
        <el-select
          v-model="formData.manager"
          style="width:80%"
          placeholder="请选择"
          @focus="getEmployeeSimple"
        >
          <el-option
            v-for="item in peoples"
            :key="item.id"
            :label="item.username"
            :value="item.username">
          </el-option>
        </el-select>
      </el-form-item>
      <el-form-item prop="introduce" label="部门介绍">
        <el-input v-model="formData.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
      </el-form-item>
    </el-form>
    <el-row slot="footer" type="flex" justify="center">
      <!-- 列被分为24 -->
      <el-col :span="6">
        <el-button type="primary" size="small" @click="btnOK">确定</el-button>
        <el-button size="small" @click="btnCancel">取消</el-button>
      </el-col>
    </el-row>
  </el-dialog>
</template>

<script>
import { getEmployeeSimple } from '@/api/employees'
import { getDepartments, addDepartments, getDepartDetail, updateDepartments } from '@/api/departments'

export default {
  props: {
    showDialog: {
      type: Boolean,
      default: false
    },
    treeNode: {
      type: Object,
      required: true
    }
  },
  computed: {
    showTitle() {
      return this.formData.id ? '编辑部门' : '新增子部门'
    }
  },
  data () {
    const validateName = async (rule, value, callback) => {
      const { depts } = await getDepartments()

      let flag = false
      if(this.formData.id) {
        // 编辑
        flag = depts.filter(item => item.id !== this.treeNode.id && item.pid === this.treeNode.pid).some(item => item.name === value)
      } else {
        flag = depts.filter(item => item.pid === this.treeNode.id).some(item => item.name === value)
      }

      flag ? callback(new Error(`组织架构已经存在${value}部门了`)) : callback()
    }

    const validateCode = async (rule, value, callback) => {
      const { depts } = await getDepartments()

      let flag = false
      if(this.formData.id) {
        // 编辑
        flag = depts.some(item => item.code === value && item.id !== this.treeNode.id)
      } else {
        // 添加
        flag = depts.some(item => item.code === value)
      }

      flag ? callback(new Error(`组织架构中已经有部门使用${value}编码`)) : callback()
    }

    return {
      formData: {
        name: '',
        code: '',
        manager: '',
        introduce: ''
      },
      rules: {
        name: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门名称要求1-50个字符', trigger: 'blur' },
          { validator: validateName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门编码要求1-50个字符', trigger: 'blur' },
          { validator: validateCode, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '部门负责人不能为空', trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '部门介绍不能为空', trigger: 'blur' },
          { trigger: 'blur', min: 1, max: 300, message: '部门介绍要求1-50个字符' }
        ]
      },
      peoples: []
    }
  },
  methods: {
    async getEmployeeSimple() {
      this.peoples = await getEmployeeSimple()
    },
    btnOK () {
      this.$refs.deptForm.validate(async isOK => {
        if (isOK) {
          if(this.formData.id) {
            // 编辑
            await updateDepartments({ ...this.formData })
          } else {
            // 添加
            await addDepartments({ ...this.formData, pid: this.treeNode.id })
          }
          this.$emit('addDepts')

          this.$emit('update:showDialog')
        }
      })

    },
    btnCancel () {
      this.formData = {
        name: '',
        code: '',
        manager: '',
        introduce: ''
      }
      this.$refs.deptForm.resetFields()
      this.$emit('update:showDialog', false)
    },
    async getDepartDetail(id) {
      this.formData = await getDepartDetail(id)
    }
  }
}
</script>

<style>

</style>
